Most ostomates know it can be a challenge keeping ostomy appliances from leaking or prolonging their wear time. However, many have found using barrier rings can assist in both. Barrier rings can be used as a substitute for paste in filling low spots around the stoma. Most are moldable and come in different sizes and thicknesses. They are typically made from pectin-based hydrocolloid ingredients so they are skin friendly. There are many different brands and the barrier ring brands do not need to match the appliance brand. Give them a try. You might like the results.

GO Medical sells barrier rings here:

https://gomedicalonline.com/search?collection=all&type=product&q=barrier+ring